Stellar Lumens Blockchain Explorer https://www.hulkshare.com/maychen9/ So, when there is a large number of transactions while in the mempool and you paid a relatively small transaction charge, your transaction can continue to be unconfirmed for an prolonged time period considering that miners/validators will find transactions with higher fees very first. TraceHawk https://bookmark-nation.com/story20358333/blockchain-explorer-analytics-and-web-services-the-basic-principles-of-blockchain-explorer-tron-https-cutt-ly-3rj9ygbc